Interfering substances

Amount added of interfering (mg·L1)

Amount of cefadroxil found (µg·mL1)

%Recovery ± %RSD

Starch

2

95.2

95.2 ± 2.46

Cellulose

2

97.7

97.7 ± 4.22

Arabinose

2

93.8

93.8 ± 0.52